Durability is a property of equippable items that determines how much damage they can take before being broken. Broken items can always be repaired; gear never breaks permanently. Durability damage is not the same as normal damage.
All armor slots take durability loss excluding: Neck, Tabard, Back, Finger, and Trinket slots.
Repairing items
Any NPC who sells weapons or armor (or Blacksmithing supplies) can repair durability:
- As of Patch 2.3, your pointer changes when you move it over a repair-capable NPC:
interact with repairing vendor 
repairing vendor out of range
- Repair all items (button should look like an anvil with a gold +).
- Repair a single item (button should look like a hammer).
- The "repair all items" button also repairs items on your inventory. It's useful after you've lost durability on them by resurrecting at a Spirit Healer
- If you belong to a guild and have the required access, you can also use your guild's funds to repair (there is a specific button to do this, to the right of the "Repair all" one.
Item repair is not currently an available skill for Player Characters, but engineers can craft repair bots.
Repair cost
The base cost to repair an uncommon armor piece (no weapons or shields) assuming you are neutral with the vendor is:
- Durability points to be repaired * (ilevel - 32.5) * 0.02 silver
The base cost to repair a rare armor piece (no weapons or shields) assuming you are neutral with the vendor is:
- Durability points to be repaired * (ilevel - 32.5) * 0.025 silver
The base cost to repair an epic armor piece (no weapons or shields) assuming you are neutral with the vendor is:
- Durability points to be repaired * (ilevel - 32.5) * 0.05 silver
The reputation discounts are taken from the prices above as follows: 5% for friendly, 10% for honored, 15% for revered and 20% for exalted.
Durability loss
The following situations can reduce an item's durability:
- Being in combat at all will cause all equipped items to gradually lose durability, regardless of whether any damage is taken or dealt.
- There is a small chance with each hit by your weapon that it will lose 1 durability point.
- There is a small chance with each spell cast that you will lose 1 durability point to your weapon.
- There is a small chance with each hit absorbed by your armor that it will lose 1 durability point.
- When you die, 10% durability is lost on all equipped items (that have a durability rating). This is 10% of maximum durability, not remaining durability. You will not lose 10% durability on death if you are killed in PvP combat by another player (if a PvP flagged guard or other NPC kills you, you still lose durability) or if your death is suicide through using an item or spell that kills you (this excludes environmental damage, such as falling) or if the death is due to an encounter's mechanic (like tanking Steelbreaker with him dying as the last member - Meltdown).
- When you use the services of a Spirit Healer, you lose 25% durability on all equipped items and items in your bags, on top of the 10% durability loss on your equipped items you already lost when you died.
Low durability
From Blizzard: "Items remain at full effectiveness until they have no durability. Their power does not degrade."
When the durability on a specific item drops below 25%, a small stick figure (looks like an armored soldier) appears below the Mini-Map and the corresponding part of the stick figure (head, shoulders, chest, etc.) appears in yellow.
When the durability on a specific item reaches 0%, the corresponding part of the stick figure (head, shoulders, chest, etc.) appears in red. Once the durability of the item reaches 0%, the player can still wear or wield the item, but he does not receive any stat benefits (stats, resistances or armor). If a weapon breaks though, you fight as if unarmed. Items cannot permanently break!
Note: if the broken item is a set item, the set bonuses will still be active.
Maximum durability
The maximum durability of an item depends on its quality, its type (slot, armor type, weapon type) and for items of level 28 and lower also on item level. The tables below show the durability of items of item level 29 and higher.
| Slot | Poor, common, and uncommon | Rare | Epic | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloth | Leather | Plate | Cloth | Leather | Plate | Cloth | Leather | Plate | ||||
| hands/waist/wrist | 25 | 30 | 35 | 40 | 30 | 35 | 40 | 45 | 35 | 40 | 50 | 55 |
| feet | 35 | 45 | 50 | 55 | 40 | 50 | 60 | 65 | 50 | 60 | 70 | 75 |
| head/shoulder | 45 | 50 | 60 | 70 | 50 | 60 | 70 | 80 | 60 | 70 | 85 | 100 |
| legs | 55 | 65 | 75 | 85 | 65 | 75 | 90 | 100 | 75 | 90 | 105 | 120 |
| chest | 70 | 85 | 100 | 115 | 80 | 100 | 120 | 135 | 100 | 120 | 140 | 165 |
| Slot | Poor, common, and uncommon |
Rare | Epic | Legendary |
|---|---|---|---|---|
| wand, dagger, fist weapon | 55 | 65 | 75 | ? |
| bow, crossbow, gun | 65 | 75 | 90 | 110 |
| 1h-axe, 1h-sword, 1h-mace | 75 | 90 | 105 | 125 |
| shield, staff, polearm, 2h-mace, 2h-sword, 2h-axe | 85 | 100 | 120 | 145 |
Calculation
The numbers presented in the previous section can also be calculated reasonable well using the following formulae.
Armor
For all 60 possible combinations of type, quality and armor class, this formula correctly calculates the durability for 57 combinations. For three combinations the predicted durability is either 5 points too high or 5 points too low:
- Durability = 5 x round(23 x Cquality x Ctype x Carmor)
With Cquality, Ctype and Carmor according to these values:
| Slot | Ctype |
|---|---|
| hand/waist/wrist | 0.35 |
| feet | 0.49 |
| shoulder/head | 0.59 |
| legs | 0.75 |
| chest | 1.00 |
| Type | Carmor |
|---|---|
| cloth | 0.63 |
| leather | 0.76 |
| 0.89 | |
| plate | 1.00 |
| Quality | Cquality |
|---|---|
| epic | 1.37 |
| rare | 1.17 |
| uncommon | 1.00 |
| common | ? |
| poor | ? |
Weapons and Shields
There is a similar formula that can be used to calculate the durability of weapons and shields which correctly calculates the durability for all weapons, except for epic two-handers and shields, for which the value is 5 points too low:
- Durability = 5 x round(17 x Cquality x Cwtype)
With Cwtype according to these values:
| Type | Cquality |
|---|---|
| wand, dagger, fist weapon | 0.64 |
| bow, crossbow, gun | 0.77 |
| 1h-axe, 1h-sword, 1h-mace | 0.89 |
| shield, staff, polearm, 2h-mace, 2h-sword, 2h-axe | 1.00 |
Legendary items
At the moment the only legendary items with durability that are in game are two-handers or one-handed axes, swords or maces. However, using the known durability of these items and the formula in the previous section, it can be determined that the Cquality for legendary items must be approximately 1.68.
It is now possible to make a prediction of the durability of armor items of legendary quality, and in the same vein, the durability of the remaining types of legendary weapons:
| Slot | Cloth | Leather | Plate | |
|---|---|---|---|---|
| hands/waist/wrist | 45 | 50 | 60 | 70 |
| feet | 60 | 70 | 85 | 95 |
| head/shoulder | 70 | 85 | 100 | 115 |
| legs | 90 | 110 | 130 | 145 |
| chest | 120 | 145 | 170 | 195 |
| Type | Durability |
|---|---|
| wand, dagger, fist weapon | 90 |
| bow, crossbow, gun | 110 |
| 1h-axe, 1h-sword, 1h-mace | 125 |
| shield, staff, polearm, 2h-mace, 2h-sword, 2h-axe | 145 |
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